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Anode/ Cathode

Posted: Mon Feb 12, 2018 5:15 pm
by Chew 2H
In the anode/cathode diagram we saw, is Anode always on the left side or can it be switched? If so, how would we know which is which?

Re: Anode/ Cathode

Posted: Mon Feb 12, 2018 5:35 pm
by Jakob von Morgenland 2C
I believe Dr. Lavelle will generally put the anode on the left and the cathode on the right. However, if you are unsure, look at the standard reduction potentials chart and determine which one is being reduced and which one is being oxidized from those values. Always try to make the voltage positive.

Re: Anode/ Cathode

Posted: Mon Feb 12, 2018 6:05 pm
by Riya Pathare 2E
A clever way to remember it is "Red Cat" or "red"uction at the "cat"hode.

Re: Anode/ Cathode

Posted: Fri Feb 16, 2018 4:46 pm
by Ashley Garcia 2L
Generally, the anode is on the left and the cathode is on the right. If this is not the case, however, you can identify which electrode is the anode and which is the cathode by looking at the half reactions. The oxidation half reaction takes place at the anode (electrons are lost), the reduction half reaction takes place at the cathode (electrons are gained).

Re: Anode/ Cathode

Posted: Fri Feb 16, 2018 5:18 pm
by Justin Folk 3I
Red Cat-- reduction at cathode
An Ox-- anode oxidation

Re: Anode/ Cathode

Posted: Fri Feb 16, 2018 5:38 pm
by Meredith Steinberg 2E
Usually the anode is on the left and the cathode is on the right, and we see the electrons flow from left to right. If this isn't the case, though, just remember that oxidation (loss of elections) occurs at the anode and reduction (gain of electrons) occurs at the cathode.

Re: Anode/ Cathode

Posted: Fri Feb 16, 2018 7:21 pm
by Mitch Walters
I believe that the template usually has the anode on the left, but I don't think it physically needs this to work.